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Mimetite
Mimetite

Lapis lazuli
Lapis lazuli



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Mimetite
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Lapis lazuli

Mimetite and Lapis lazuli Optical Properties

1 Optical Properties
1.1 Luster
Resinous, Subadamantine
Vitreous, Greasy
1.2 Pleochroism
Weak
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Opaque
1.5 Refractive Index
2.106-2.2631.500-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal
1.8 Birefringence
0.019Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Gemstones of the world (2001)

Mimetite and Lapis lazuli Optic Character

Mimetite and Lapis lazuli optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Mimetite and Lapis lazuli Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Mimetite and Lapis lazuli optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Mimetite and Lapis lazuli Transparency

Similar to their colors, Mimetite and Lapis lazuli transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Mimetite is Translucent while Mimetite is Translucent in appearance.